<template>
    <div class="user">
        <el-row>
            <el-col :span="24">
                <el-breadcrumb separator="/">
                <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
                <el-breadcrumb-item>用户管理</el-breadcrumb-item>
                <el-breadcrumb-item>用户列表</el-breadcrumb-item>
            </el-breadcrumb>
            </el-col>
        </el-row>

        <el-row>
            <el-col :span="24">
                <!-- 给组件绑定原生事件的话，需要一个.native的修饰符 -->
                <el-input placeholder="请输入内容" class="search-input" v-model="query" @keydown.native.enter="initList">
                <el-button slot="append" icon="el-icon-search" @click="initList"></el-button>
                </el-input>
                <el-button type="success" plain @click="addDialogFormVisible=true">添加用户</el-button>
            </el-col>
        </el-row>

        <el-table
            :data="userList"
            v-loading = "isLoading"
            border
            style="width: 100%">
            <el-table-column
                type="index"
                width="50">
            </el-table-column>
            <el-table-column
                prop="username"
                label="姓名"
                width="180">
            </el-table-column>
            <el-table-column
                prop="email"
                label="邮箱"
                width="180">
            </el-table-column>
            <el-table-column
                prop="mobile"
                label="电话">
            </el-table-column>
            <el-table-column label="用户状态">
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="changeUserState(scope.row)"></el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作">
                <template slot-scope="scope">
                    <el-button size="mini" type="primary" plain icon="el-icon-edit" @click="showEditDialog(scope.row)"></el-button>
                    <el-button size="mini" type="danger" plain icon="el-icon-delete" @click="showDeleteDialog(scope.row)"></el-button>
                    <el-button size="mini" type="warning" plain icon="el-icon-check" @click="showGrantDialog(scope.row)"></el-button>
                </template>
            </el-table-column>
        </el-table>
        <div class="page">
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="1"
                :page-sizes="[10, 20, 30, 40]"
                :page-size="10"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </div>
        <!-- 添加用户对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogFormVisible">
            <el-form :model="addForm" label-width="80px" :rules="rules" ref="addUserForm">
                <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username" auto-complete="off"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password" auto-complete="off"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email" auto-complete="off"></el-input>
                </el-form-item>
                <el-form-item label="电话" prop="mobile">
                <el-input v-model="addForm.mobile" auto-complete="off"></el-input>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button @click="addDialogFormVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUserSubmit('addUserForm')">确 定</el-button>
            </div>
        </el-dialog>
        <!-- 编辑用户对话框 -->
        <el-dialog title="编辑用户" :visible.sync="editDialogFormVisible">
            <el-form :model="editForm" label-width="80px" :rules="rules" ref="editUserForm">
                <el-form-item label="用户名" prop="username">
                <el-input v-model="editForm.username" auto-complete="off" :disabled="true"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                <el-input v-model="editForm.email" auto-complete="off"></el-input>
                </el-form-item>
                <el-form-item label="电话" prop="mobile">
                <el-input v-model="editForm.mobile" auto-complete="off"></el-input>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button @click="editDialogFormVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserSubmit('editUserForm')">确 定</el-button>
            </div>
        </el-dialog>
        <!-- 分配角色对话框 -->
        <el-dialog title="分配角色" :visible.sync="grantDialogFormVisible">
            <el-form :model="grantForm" label-width="120px">
                <el-form-item label="当前的用户：" prop="username">
                <el-tag type="info">{{grantForm.username}}</el-tag>
                </el-form-item>
                <el-form-item label="请选择角色：">
                <el-select v-model="roleId" placeholder="请选择角色">
                    <el-option
                    v-for="(role, index) in roleList"
                    :key="index"
                    :label="role.roleName"
                    :value="role.id">
                    </el-option>
                </el-select>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button @click="grantDialogFormVisible = false">取 消</el-button>
                <el-button type="primary" @click="grantUserSubmit()">确 定</el-button>
            </div>
        </el-dialog>
    </div>
</template>
           
<script>
import {getUserList,changeUserState,addUser,getUserById,editUser,deleteUser,getRoleList, grantUserRole} from '../../api/index.js'
export default{
    data() {
        return {
            userList:[], // 用户列表
            query:'', // 搜索条件
            total: 0, // 数据总条数
            pagesize: 10, // 每页显示多少条
            pagenum: 1, // 当前页码
            addDialogFormVisible: false, // 控制添加用户对话框显示隐藏
            // 存储添加的用户信息
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 控制编辑用户对话框显示隐藏
            editDialogFormVisible: false,
            // 存储编辑的用户信息
            editForm: {
                username: '',
                email: '',
                mobile: '',
                id: 0
            },
            // 控制分配用户角色对话框显示隐藏
            grantDialogFormVisible: false,
            // 存储分配角色时获取的用户信息
            grantForm: {},
            // 角色列表
            roleList: [],
            // 角色ID
            roleId: '',
            // 控制加载动画
            isLoading: false,
            // 添加用户的表单验证
            rules: {
                username: [{ 
                    required: true, message: '请输入用户名', trigger: 'blur'
                }],
                password: [{ 
                    required: true, message: '请输入密码', trigger: 'blur' 
                }],
                email: [{ 
                    required: true, message: '请输入邮箱地址', trigger: 'blur' },{ 
                    type: 'email', message: '请输入正确的邮箱地址', trigger: 'blur,change'
                }],
                mobile: [{ 
                    required: true, message: '电话不能为空' 
                }]
            }
        }
    },
    created(){
        this.initList()
    },
    methods:{
        // 初始化表格数据
        initList () {
            this.isLoading = true
            getUserList({params: {query: this.query, pagenum: this.pagenum, pagesize: this.pagesize}}).then(res => {
                console.log(res)
                this.isLoading = false
                if(res.meta.status === 200){
                    this.userList = res.data.users
                    this.total = res.data.total
                }else{
                    this.$message({
                        type: 'error',
                        message: res.meta.msg
                    })
                }
                
            })
        },
        handleSizeChange (val) {
            console.log(`每页 ${val} 条`)
            this.pagesize = val
            this.initList()
        },
        handleCurrentChange (val) {
            console.log(`当前页: ${val}`)
            this.pagenum = val
            this.initList()
        },
        // 改变用户状态
        changeUserState (row) {
            console.log(row)
            changeUserState({uid: row.id, type: row.mg_state}).then(res => {
                if (res.meta.status === 200) {
                    this.$message({
                        type: 'success',
                        message: '修改用户状态成功'
                    })
                } else {
                    this.$message({
                        type: 'warning',
                        message: res.meta.msg
                    })
                }
            })
        },
        // 添加用户
        addUserSubmit (formName) {
            this.$refs[formName].validate(valide => {
                if (valide) {
                    // 执行添加用户方法
                    addUser(this.addForm).then(res => {
                        console.log(res)
                        if (res.meta.status === 201) {
                            this.$message({
                                type: 'success',
                                message: '创建用户成功!'
                            })
                        }
                        this.addDialogFormVisible = false
                        this.initList()
                    })
                }
            })
        },
        // 显示编辑用户对话框
        showEditDialog (row) {
            this.editDialogFormVisible = true
            getUserById(row.id).then(res => {
                if (res.meta.status === 200) {
                    this.editForm.username = res.data.username
                    this.editForm.email = res.data.email
                    this.editForm.mobile = res.data.mobile
                    this.editForm.id = res.data.id
                }
            })
        },
        // 编辑用户提交
        editUserSubmit (formName) {
            this.$refs[formName].validate(valide => {
                if (valide) {
                    editUser(this.editForm).then(res => {
                        if (res.meta.status === 200) {
                            this.$message({
                                type: 'success',
                                message: '编辑成功'
                            })
                            this.editDialogFormVisible = false
                            this.initList()
                        }
                    })
                }
            })
        },
        // 显示删除对话框
        showDeleteDialog (row) {
            this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).then(() => {
                // 执行删除用户操作
                deleteUser(row.id).then(res => {
                    if (res.meta.status === 200) {
                        this.$message({
                            type: 'success',
                            message: '删除成功!'
                        })
                        this.initList()
                    }
                })
            }).catch(() => {
                this.$message({
                    type: 'info',
                    message: '已取消删除'
                })
            })
        },
        // 显示分配角色对话框
        showGrantDialog (row) {
            this.grantForm = row
            this.grantDialogFormVisible = true
            getRoleList().then(res => {
                console.log(res)
                if (res.meta.status === 200) {
                    this.roleList = res.data
                }
            })
        },
        // 分配角色
        grantUserSubmit () {
            if (!this.roleId) {
                this.$message({
                    type: 'warning',
                    message: '角色不能为空，请选择！'
                })
            } else {
                grantUserRole({id: this.grantForm.id, rid: this.roleId}).then(res => {
                    if (res.meta.status === 200) {
                        this.$message({
                            type: 'success',
                            message: '设置角色成功'
                        })
                        this.grantDialogFormVisible = false
                    } else {
                        this.$message({
                            type: 'error',
                            message: res.meta.msg
                        })
                    }
                })
            }
        }
    }
}
</script>
<style lang = 'scss' scoped>
.user {
  .margin-20 {
    margin: 20px 0;
  }
  .search-input {
    width: 300px;
  }
  .page {
    padding: 5px 0;
    background-color: #D3DCE6;
  }
}   
</style>